How to reduce backup size?

Morning folks,
Was wondering whats is the best way to reduce a project size.
I have a project at approx 60mb.
I deleted unwanted windows and templates, thinking this would reduce Backup size but made no difference.
Any suggestion what I am doing wrong.
Is this for rollback feature?

What version of Ignition? There are known problems with older versions that cause backups to continually grow. If you cannot upgrade, consider contacting support for assistance.

Currently using 7.9.9.

Shouldn’t have that problem. One possibility is an accumulation of large datasets in component properties. You should always set your large queries to not retain the data. Datasets created otherwise should be cleared before saving. Or use the TransientDataset class from the Simulation Aids module to make your scripted datasets behave that way.

You can export the project and import it.
This will erase the changelog.

This done the trick. Got it down to around 14mb.
Thank you for the help.

Thank you for the advice, don’t think it comes into play in my current project but will be useful to know for the future.